diff --git a/Dockerfile b/Dockerfile
index e2a7ce39..d8a9d3ff 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,10 +3,13 @@ FROM ghcr.io/lsst-dm/prompt-base:${BASE_TAG}
 ENV PYTHONUNBUFFERED True
 ENV APP_HOME /app
 ENV PROMPT_PROCESSING_DIR $APP_HOME
+# Normally defined in the Kubernetes config.
+ENV WORKER_RESTART_FREQ ${WORKER_RESTART_FREQ:-0}
 ARG PORT
 WORKDIR $APP_HOME
 COPY python/activator activator/
 COPY pipelines pipelines/
 CMD source /opt/lsst/software/stack/loadLSST.bash \
     && setup lsst_distrib \
-    && exec gunicorn --bind :$PORT --workers 1 --threads 1 --timeout 0 activator.activator:app
+    && exec gunicorn --workers 1 --threads 1 --timeout 0 --max-requests $WORKER_RESTART_FREQ \
+        --bind :$PORT activator.activator:app